This is one of the most strange and interesting vintage tees I have come across. AMICA stands for Automatic Musical Instrument Collectors Association, it was a group devoted to collecting collecting player pianos and other roll playing and automatic instruments. This is before modern electronic instruments so these instruments were more widely in use. The shirt is from the group's 1977 convention held in San Francisco. If you think that is interesting, I was able to find footage of the event the shirt commemorates, check it out on youtube at this link:  https://www.youtube.com/watch?v=xb0Qt_HYaV8&t=556s

If you want to learn more about the group here is there website (they are still arround today)
https://www.amica.org/

And here is one of their catouloges from the year 1977
chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://stacks.stanford.edu/file/druid:bj285rv5005/14-05.pdf

What you are buying here is not just a vintage shirt, but an interesting peice of obscure history. I hope you enjoy it. 

Measurements:

-Pit to Pit: 19.25 Inches

-Full Length: 27 Inches

-Sleeve Length (From Shoulder Hem): 8.25 Inches


I do returns and refund the price of the item (not shipping) but the buyer will be responsible for return shipping.