T206 Walter Johnson Port PSA Auth Altered
 

Up for sale is this T206 WaJo port with a Sweet Cap 150/649 overprint back, graded PSA Auth Altered. I am unclear what the alteration is supposed to be. Obviously very rounded corners, but a nice image IMO.

SOLD shipped via tracked USPS Priority. Multiple payment methods accepted.

https://i.imgur.com/LCvwQgS.png
https://i.imgur.com/60KPAWj.jpg