New Additions #2 --- No, Not Harry

Stampvirgin, if you are asking me, see previous post. Now---to me the second stamp seems to have a lavender, or purplish hint to it, so maybe it is the lilac shade. As for the first, I have not a clue. I see what you describe as a greenish cast.

I have the distinct feeling that these stamps suffer more than most with the passage of time. Perhaps the shade of ink was particularly susceptible to fading, oxidation or whatever.

Of those two scans...

First stamp isn't a 78a, well, tbh, it's what I call a "color changeling" and IMO there's no absolute way to tell what it really was/is from the scan.

Second stamp, to me, looks like a TRUE Lilac shade, Scott # 78.

billw2. et el.. I have returned the second stamp in the picture already. The first was sent to an expert, but he thought it was a 78b

I have seen plenty that look like it used earlier than possible for a 78b.

so I got the certification today. the stamp I sent as a 78a is a 78b. IT was marked and sold to me as a 78a. So I am fine with that. The expertizer did note on the cert, that the color had been altered to make a fake 70b. Dunno why he thought it necessary as the cert is only for me, and it is what the seller said it is.
any, thought I would share that with you all. All the other stamps in this post I had purchased were returned and refunded.