Hi Paul:

TGT-2 has your M&N listed but as an unknown.
I got a few of the arrow in a circle from
Doug Harrold but don't know anything about them.
They are similar to the illegal Indian chips
from Cheif Sanctium (sp) but are probably not related.
Your VCC, HARP mold is from Havana, Cuba according to
Henry Garrett who knows as much about Cuban chips as
anyone I know.