Tricks of the trade.
The wolves in sheep's clothing.
Now here's a nice set from 1909, worth around $700 for a full set mint.
This is a short set, but not too bad to fill your page........
All Scott Type A21
All A21 have the Tughra "Leaning Left" as I like to call it
Also, look at the script below the Tughra,
A21 should NOT
fill the bottom of the circle.
That 2½ value fellow, he's hiding in that lot, and others
The A21 attracts a CV of $90 / $20
That little imposter (An A19) is valued at $3
Look at the scan, and see if you can pick the imposters. (There's 3 of them)