The Mothers Of Invention - My Guitar Wants To Kill Your Mama (Reprise). 

I'm wondering if that single is credited to The Mothers or Frank Zappa & what country is the pressing?

@@visualvinyldiscs it’s a promo WB single Found it at the Rose Bowl flea market 50 cents, no sleeve, a bit chewed, Dog Breath is the flip

I see the entry on 45cat has it on the Reprise label, U.S.A. pressing demo.

@@visualvinyldiscs I’m sorry, you’re right. All my records are in California and, I thought I still had a memory left

I know exactly what you mean, it's very frustrating I know, my one brain cell keeps letting me down ha ha. You are not alone : )