Hutch bar ID ?

[dirtskirt]

How can you know if these are hutch bars ?
I dont what size or anything about them, do they have stamps or knurling? any help appreciated

[markyp]

early hutch bars have no knurling and are unstamped,later hutch bars around 86 had the knurling.there were also variaitions in the  shape of the hutch bar through the 80's,the first gen were quite  round and sweeping in contrast to the slightly later mid 80's which were very similar to the boxy gt bars.one noteable thing with hutch bars is the very thin crossbar,looking at your pic those could well be second gen hutch pro bars,send mark j a pm,hes the hutch expert around here

[Bigplinky]

Look very similar to a pair I've got, if you want pics or dimensions give me a shout 

[HUTCHMAN]

look inside the end of the bars,if the tubing is seamless then they are cro-mo,with a seam then just steel.