price check: blank back kirk

[k2]

how much more or less does the blank back go for, compared to the regular version? no heat seal emblem.

thanks in advance
k.c.

[josephcardone]

There was one on Ebay before the Holidays that was in poor condition. The card had shelf wear and the figures phaser and communicator were yellow. I believe the bubble had turned yellow as well. I think it only went for around $30. I believe this would be on the low end (obviously). The figure had the heat sealed insignia.