Is The One On The Right Also A Dated Precancel?

I have a few similar to this, so I am wondering if they are dated precancels or not.

The one on the left with the polished, printed date is what I think of ... is the one on the right a handmade dated? Or did a date get post-applied to a regular stamp?

Thanks.

I would say quite likely yes, the stamp on the right is a handstamp dated precancel used by a relatively small company that put to use a conventional date stamp as a means to comply with postal regulations of the period. With only a partial date imprint, it's virtually impossible to say for sure, as there could be occasion when a date stamp was applied by an office clerk on incoming mail and could have hit the stamp in the process, although it would seem far less likely that such an incident would have occurred as it would seem to me the office stamp would be placed elsewhere and not over the stamp.

By the way, the stamp on the left with "MW" imprint is from Montgomery Ward, one of the most prolific users of precancels in that day (if you didn't know that already.)

The one on the left is an Printed Dated Control style type MW-3. Common on this stamp.
The one on the right looks like it could be Handstamp Date control, but without the User identifier it is nothing!

OK -- so if you had to bet, is it just a date that got stamped haphazardly (in the mailroom, as wt1 suggested, perhaps) or is it a Handstamp that got mostly cut off? I want to know whether to file it in the glassine with the "precancels I don't need" or with the "regular stamps I don't need" !

The left is a printed date MW, the right just becomes a regular Type 71>
Keep both unless you have another type 71 on this stamp!

The date on the right is a handstamp but without the identifier or year there is no way you'll know what it is!

Thanks. warrehouse.

Of course I meant that I needed to file it either in "dated precancels I don't want" or in "duplicate undated precancels", because I do have another with no dates or mysterious handstamps, which I will be keeping. I think I'll still file it with the dated, since if I ever do get around to disposing of them it is more likely to be of interest in that category than for a regular undated collector.