Hey guys, I'm not expert so can't comment on where these lids originated from but for what it's worth I own one & must say I really like it.
It seems built well & the details sharp for a 2mm cast, I have a couple of nice lids like RS props fully painted "aged" look Stormy & their Snowtrooper ,Godzilla's Tusken raider etc & reckon the Mac Sandy doesn't look out of place quality wise.
That's just my personal thoughts on it.