Hoplite Shield Designs

[Gaius Julius Quartus]

Here's what I have so far - the design has been copied and enlarged, then taped on as a mock-up.
(One leg is missing, and the wingtips - this will be fixed, of course.)
It's amazing the level of detail those sculptors who worked on the coins were able to capture.

The bee is from a late 5th Century Ephesian coin (and there are other examples earlier and later).
The source is Catalogue of the Greek Coins of Ionia by Barclay Vincent Head, Plate IX.5 and IX.7.
(The 2005 Elibron Classics reprint of the 1892 original, published by the British Museum)

It may take a bit to complete, but you can see what I have in mind.

One further, question - if you will be so kind - is it plausible for the monogram "E-PH" to appear on the shield? This is very prevalent on coins, to signify the polis where the coins is from. And I am aware of the famous Lambda and Alpha from Sparta and Athens, respectively. But I am unsure whether both the bee and the letters might have appeared on an aspis at the same time. Thank you, in advance.

John