I just started to go through a box of covers that hasn't been open since the 80's. The handwriting is familiar but I just can't place it. I;e had several if these over the years - who knows what else is in the box?

When I was doing shows I had a customer who would stop by and go over anything new I had in 10's or 11's (I always identified them as 11's until he "expertised" them.)He would also usually plate a couple for me and point out the good ones.

Thanks for any assistance you can give