Are these all onion skins? End of days?

[M-M]

I know this is a group shot with a lot of marbles but do these all look like onion skins to you? Another question ... what makes an onion skin an end of days too? And do you see any

[The Nickel Guy]

What a bunch of antique hand made marbles! Wow! I can't tell you much about Onionskins tho. 

[Joe2]

Mostly onions

[akroorka]

Imho--you have a mix here.
Contemporary vs Antique.
@Chad G. can narrow them down for sure but you have to post some individual shots of each.
Show the poles—or the ruff spots on each marble.
Marble--On!!
 

[I'llhavethat1]

They look legit vintage from here.  

There are some unusual looking combos that would benefit from closer pics as mentioned above.  Some details are hard to make out from damage

With regard to the term "end of day", some people call the fancier/splotchy ones?  Maybe someone else will chime in.. 

 

[Ric]

I agree they look vintage. The red one you singled out is interesting. I think some people would call it a cased clambroth, but I don't think that is a technically correct.

As for "end-of-day", I find the term mostly confounding and not very useful since it is poorly defined, as far as I can tell. As mentioned above, I think most people define end-of-day Onion Skins are those with splotchy colors that do not form pole-to-pole filaments. I think the general idea is that, at the end of the day, workers would roll up stray bits of frit from their work area onto a remaining cane and make a marble out of it. In its original iteration, I think it was used only to describe single pontil marbles but then those may have became "end-of-canes". This occurred at about the same time that my head exploded.