Approximate weight of Collins Legitimus Single Bit ?

[mobenzowner]

Just bought one off the flea auction site. Probably paid too much ($28). It is a single bit with dimensions of 7 1/2 X 4 3/4. This is my first Collins and I was curious what the standard weight for this axe head would be. I am guessing close to 3 1/2 lbs, am I close?
Thanks,
Kevin

 

[Square_peg]

I have one about that size and it's 3-1/2 lbs. It's easy to hide an extra 1/2 lb. in the poll..