OK- So these are the first project... all from the closeout of a storage unit- From Left to Right number TWO has a crushed/bent top and the three "headless" ones are missing their end caps... Its a Brass as far as I can tell (Fizzes with strong vinegar and has a green cast like corrosion around the rims.) Ill be posting this as I go- but this is my first "WIP" here. The TPI of the extinguishers is different for the three missing- and I notice some have oval cross section and some round "spokes" to the others. First thing- build a flask and a cheek! More to come Anyone have thoughts on allowance for threads? I was gonna just pack the threads with wax and let 'er rip!