diff --git a/external-wasms/cw721_metadata_onchain_v0.16.0.wasm b/external-wasms/cw721_metadata_onchain_v0.16.0.wasm
new file mode 100644
index 0000000..5e87da2
Binary files /dev/null and b/external-wasms/cw721_metadata_onchain_v0.16.0.wasm differ
diff --git a/ts-relayer-tests/src/cw721-utils.ts b/ts-relayer-tests/src/cw721-utils.ts
index 5e329af..04e1d5a 100644
--- a/ts-relayer-tests/src/cw721-utils.ts
+++ b/ts-relayer-tests/src/cw721-utils.ts
@@ -10,7 +10,15 @@ export function mint(
   token_uri: string | undefined
 ) {
   const msg = {
-    mint: { token_id, owner, token_uri },
+    mint: {
+      token_id,
+      owner,
+      token_uri,
+      extension: {
+        description: "This is a test NFT",
+        image: "https://ark.pass/image.png",
+      },
+    },
   };
   return client.sign.execute(
     client.senderAddress,
@@ -82,11 +90,29 @@ export function allTokens(
   return client.sign.queryContractSmart(cw721Contract, msg);
 }
 
+/// valid for v16 - v19
 export function nftInfo(
   client: CosmWasmSigner,
   cw721Contract: string,
   token_id: string
-) {
+): Promise<{
+  token_uri: string | null;
+  extension: {
+    image: string | null;
+    image_data: string | null;
+    external_url: string | null;
+    description: string | null;
+    name: string | null;
+    attributes: null | Array<{
+      trait_type: string;
+      value: string;
+      display_type: string | null;
+    }>;
+    background_color: string | null;
+    animation_url: string | null;
+    youtube_url: string | null;
+  };
+}> {
   const msg = {
     nft_info: {
       token_id,
diff --git a/ts-relayer-tests/src/ics721.spec.ts b/ts-relayer-tests/src/ics721.spec.ts
index 50ebc50..240aaf6 100644
--- a/ts-relayer-tests/src/ics721.spec.ts
+++ b/ts-relayer-tests/src/ics721.spec.ts
@@ -13,6 +13,7 @@ import {
   getCw721Minter_v16,
   getCw721MinterOwnership,
   mint,
+  nftInfo,
   ownerOf,
   sendNft,
 } from "./cw721-utils";
@@ -67,7 +68,7 @@ interface TestContext {
 const test = anyTest as TestFn<TestContext>;
 
 const WASM_FILE_CW721 = "./internal/cw721_metadata_onchain_v0.19.0.wasm";
-const WASM_FILE_CW721_v16 = "./internal/cw721_base_v0.16.0.wasm";
+const WASM_FILE_CW721_v16 = "./internal/cw721_metadata_onchain_v0.16.0.wasm";
 const WASM_FILE_CW721_INCOMING_PROXY = "./internal/cw721_incoming_proxy.wasm";
 const WASM_FILE_CW721_OUTGOING_PROXY =
   "./internal/cw721_outgoing_proxy_rate_limit.wasm";
@@ -375,7 +376,7 @@ const standardSetup = async (t: ExecutionContext<TestContext>) => {
   t.pass();
 };
 
-test.skip("transfer NFT: wasmd -> osmo", async (t) => {
+test.serial("transfer NFT: wasmd -> osmo", async (t) => {
   await standardSetup(t);
 
   const {
@@ -470,6 +471,14 @@ test.skip("transfer NFT: wasmd -> osmo", async (t) => {
   const minterOwnerShip = await getCw721MinterOwnership(osmoClient, osmoCw721);
   t.is(osmoIcs721, minterOwnerShip.owner);
 
+  const wasmNftInfo = await nftInfo(wasmClient, wasmCw721, tokenId);
+  // assert extension is not null
+  t.truthy(wasmNftInfo.extension);
+  const osmoNftInfo = await nftInfo(osmoClient, osmoCw721, tokenId);
+  t.truthy(osmoNftInfo.extension);
+  // assert nft with extension is same
+  t.deepEqual(wasmNftInfo, osmoNftInfo);
+
   // test back transfer NFT to wasm chain
   t.log(`transfering back to wasm chain via ${channel.channel.dest.channelId}`);
   transferResponse = await sendNft(
@@ -925,9 +934,16 @@ test.serial("transfer NFT v16: wasm -> osmo", async (t) => {
   );
   // assert minter is set to ics721
   const minterOwnerShip = await getCw721Minter_v16(osmoClient, osmoCw721);
-  console.log(">>>>>", minterOwnerShip);
   t.is(osmoIcs721, minterOwnerShip.minter);
 
+  const wasmNftInfo = await nftInfo(wasmClient, wasmCw721_v16, tokenId);
+  // assert extension is not null
+  t.truthy(wasmNftInfo.extension);
+  const osmoNftInfo = await nftInfo(osmoClient, osmoCw721, tokenId);
+  t.truthy(osmoNftInfo.extension);
+  // assert nft with extension is same
+  t.deepEqual(wasmNftInfo, osmoNftInfo);
+
   // test back transfer NFT to wasm chain
   t.log(`transfering back to wasm chain via ${channel.channel.dest.channelId}`);
   transferResponse = await sendNft(
@@ -1296,7 +1312,7 @@ test.serial("transfer NFT v16: wasm -> osmo", async (t) => {
   t.is(wasmAddr, tokenOwner.owner);
 });
 
-test.skip("admin unescrow and burn NFT: wasmd -> osmo", async (t) => {
+test.serial("admin unescrow and burn NFT: wasmd -> osmo", async (t) => {
   await standardSetup(t);
 
   const {
@@ -1481,7 +1497,7 @@ test.skip("admin unescrow and burn NFT: wasmd -> osmo", async (t) => {
   );
 });
 
-test.skip("malicious NFT", async (t) => {
+test.serial("malicious NFT", async (t) => {
   await standardSetup(t);
   const {
     wasmClient,