Founded 1929. Became Grumman Aerospace Corp. in 1969. Merged with Northrop in 1994.

Grumman history at Aerofiles.com.

Grumman Memorial Park.

I think these are some of the most beautiful service pins there are. Right up there with North American and Douglas Aircraft. Related to Grumman, I have seen Gulfstream service pins, but none for Logicon.

Grumman Aerospace Corp., ca 1969 to 1994?

• Ten year pin with white stone. The five year pin looks much like this, only with small pearl in place of the diamond.
• Ten year pin variation.
• Fifteen year pin with 4 diamonds. The use of diamonds (?) instead of sapphires in the "skirt" here is interesting.
• Fifteen year pin variation.
• Twenty year pin with 1 diamond and four sapphires.

• One, two, or three year pin?
• Five year pin with small pearl.
• Ten year pin with diamond.
• Fifteen year pin with four diamonds.

• Twenty year pin.
• Thirty year pin. This pin was awarded in 1983, almost certainly overlapping the New Style pins. Perhaps Grumman had a cache of high-year pins?
• Thirty-five year pin. This pin was awarded in 1988.

32 - Ten year pin, sterling with 3 garnets. This pin was awarded in 1963. The 15 year version of this style pin had 3 white stones (a known example was awarded in 1968). Interesting "transitional" style pin - except that old-style pins continued to be awarded after, and maybe even during, this period.
33 - An idea or suggestion award. Not a service pin, but it is rare to see non-service pins with stones. This pin is also to be found with a green stone. Note the new-style logo. Information would be much appreciated: email.

15 year pin shown in its original box (more of a pouch), including recipient's name:

Front of the pin.
Reverse of the pin.
Box open.
Box closed.

Unknown year pin with 1 white and one blue stone. If I had to guess, I'd say this is a 15 year pin.