Dating Arrow Shirt

[Agnes Carol]

I've got this Arrow shirt that I can't tell the date on. This label doesn't quite match the ones already on the website with its outline font. Also wondering if anyone can point me towards the history of having the stamped info at the bottom of the shirt?

Thanks!

 

[The Vintage Vendeuse]

Interesting to see the Amalgamated Clothing Workers of America union "label" stamped on the shirt. That union label ended in 1976, when the ACWA merged with the Textile Workers of America and became the Amalgamated Clothing and Textile Workers Union (ACTWU), so your shirt is no younger than that.
I'm thinking late 1960s/early 70s but let's see what others say, many here are way more knowledgeable about men's clothing than I am.

 

[poppysvintageclothing]

I see 60s with this one.

 

[Rue_de_la_Paix]

Another vote for 1960's.