Since this was passed to me from family, I'm trying to gather as much info on it so I can relay it back to my wife's grandpa. I looked for any other identification marks, but I see no remnants of a serial number on the feet or body, and on the underside theres a square hole like a holding hole, not the normal oval indentation that is associated with the Arm & Hammer brand. From what I can tell, it looks like a 2 and a 6, but this definitely weighs more than 26 pounds. There are remnants of numbers stamped below the logo, but its hard to make them out. The logo is really worn down, but after a ton of research I found it is a second generation Arm and Hammer (2nd gen as in 2nd logo design). It looks like it’s gotten a couple little repairs and might have a mild steel body with a hardened steel top plate, but I’m not entirely sure. Hello everyone! My wife’s grandpa gave me some free goodies that he’s been holding on to for years.