Quote Originally Posted by magnarc View Post
You can get 15 or 16 inch framed 416-(8)As, and also 416-(8)z so that's most likely what they are, later production 15 inch A's. Earlier As had a green frame. Somewhere I recall seeing a green framed 416-z.

The other thing, we all assume they are 416. We haven't seen the front, they could be 418 with the aluminium dustcap repainted from white. There is that black overspray.
Doesn't the Z tend to have black 15" frames? I do think these have been painted, as previously suggested. Could they be repainted 421s?