diff --git a/package-lock.json b/package-lock.json
index 077c7a161..d185418ba 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@jeremyckahn/farmhand",
-  "version": "1.18.9",
+  "version": "1.18.10",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@jeremyckahn/farmhand",
-      "version": "1.18.9",
+      "version": "1.18.10",
       "license": "GPL-2.0-or-later",
       "dependencies": {
         "@emotion/react": "^11.11.1",
diff --git a/package.json b/package.json
index 2df4430a1..f2d94003e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jeremyckahn/farmhand",
-  "version": "1.18.9",
+  "version": "1.18.10",
   "publishConfig": {
     "access": "public"
   },
diff --git a/src/components/CowCard/Subheader/Subheader.js b/src/components/CowCard/Subheader/Subheader.js
index 548255161..4827f6937 100644
--- a/src/components/CowCard/Subheader/Subheader.js
+++ b/src/components/CowCard/Subheader/Subheader.js
@@ -106,7 +106,7 @@ const Subheader = (
   return (
     <div {...{ className: 'Subheader' }}>
       <Bloodline {...{ colorsInBloodline: cow.colorsInBloodline }} />
-      {isCowPurchased && (
+      {(isCowPurchased || cowIdOfferedForTrade) && (
         <p>
           {cow.daysOld} {cow.daysOld === 1 ? 'day' : 'days'} old
         </p>
diff --git a/src/components/CowCard/Subheader/Subheader.test.js b/src/components/CowCard/Subheader/Subheader.test.js
index f04dd7639..086796932 100644
--- a/src/components/CowCard/Subheader/Subheader.test.js
+++ b/src/components/CowCard/Subheader/Subheader.test.js
@@ -100,4 +100,34 @@ describe('Subheader', () => {
       expect(value).toBeInTheDocument()
     })
   })
+
+  describe('cow age display', () => {
+    const ageRegex = /days? old/
+    test('displays when purchased', () => {
+      render(<Subheader {...baseProps} isCowPurchased={true} />)
+
+      const age = screen.queryByText(ageRegex)
+      expect(age).not.toBeNull()
+    })
+
+    test('displays when offered as trade', () => {
+      render(
+        <Subheader
+          {...baseProps}
+          cowIdOfferedForTrade="1234"
+          isCowPurchased={false}
+        />
+      )
+
+      const age = screen.queryByText(ageRegex)
+      expect(age).not.toBeNull()
+    })
+
+    test('hidden when unpurchased from shop', () => {
+      render(<Subheader {...baseProps} isCowPurchased={false} />)
+
+      const age = screen.queryByText(ageRegex)
+      expect(age).toBeNull()
+    })
+  })
 })