See scans for this nice lot of Oleomargarine revenue stamps issued by U.S. Internal Revenue with perfin (perforated initials) cancels.  The scans show them as they are, I make no claims as to identification or genuineness.  

I will combine shipping for multiple lots purchased, wait for me to send invoice before paying.  If you require priority, signed-for, registered, or other special shipping, let me know, so I can figure the shipping cost that is fair to you and me.