Hi, I'm new to the forum and am trying to figure out what stove I have. I thought it was GK and have a GK instruction booklet that came with it but reading up in it makes me think it a 9-MF as I also have a 2 page instruction sheet dated May 1976 for MSR MULTIFUEL STOVE. I was stationed at the army hospital on Oahu and bought the stove for a backpacking trip to the Napalii Coast of Kauai. I'm fairly certain that I acquired the stove in 1976. I was transferred to Arizona in 1977. From what I'm reading the GK came out in 1978. To confound matters there was a tag on the stove that said Model 9. I have everything that came with the stove except for the aluminum cup. The 1 liter red Sigg bottle has no decals and a plastic cap.