Bell System metal piece?

[MagicMo]

Cleaning out the garage. Anyone know what this is? I have a bunch of them. It was from Bell System.
Thanks
Mo

[AE_Collector]

Kind of sort of looks like it could be a shelf for rack mounting depending on the spacing of the holes in the back of it. Los similar but not exactly the same as the type we used here.

Terry

[WesternElectricBen]

I'm really confused what Terry is trying to say... Translation please?

Ben 

[troydog]

Looks like a phonebook holder tray for a wal mount payphone.

[Weco355aman]

It is a shelf used by the telco for Paging ampfiler or Modems, These were common in Oregon. every one that i seen was used to hold a paging ampflier.

[Russ Kirk]

It is a shelf.  It is installed in relay racks in the Central Offices.  Here is a photo of similar ones in use.

[ESalter]

Mo, you should measure to see if they are 19 or 23" across(mounting holes, that is).  19" is the standard width for relay racks, but 23" is pretty much the standard for Telephone racks.

[AE_Collector]

Looks like it may have mounting holes for both 19 and 23 inch racks as long as it is wide enough for 23 inch racks. Could be tough to fit into a 19 inch rack if it is wider but the option is there.

They may have originally been for amplifiers but eventually were used for almost anything. CRT,s, printers, modems etc.

Terry