Help, Coin Identification? 2 Coins

Help with this Coins, please.

Better pictures.

First coin may be this one ...
https://en.numista.com/catalogue/pieces43382.html
and your first image has CONSTAN lettering on left.
Rome (ancient) - The Tetrarchy (284-337)

Second coin, reverse has similar VOT first line lettering in circle ...
https://en.numista.com/catalogue/pieces38315.html
https://en.numista.com/catalogue/pieces43007.html
https://en.numista.com/catalogue/pieces119921.html
https://en.numista.com/catalogue/pieces118810.html
https://en.numista.com/catalogue/pieces44950.html
https://en.numista.com/catalogue/pieces73234.html
https://en.numista.com/catalogue/pieces66340.html and others ...
and again maybe CONSTAN lettering on left.

Hello, the first one is close to the one on the link, but it's another reference :
RIC VII #305.
https://en.numista.com/catalogue/pieces45265.html

Observe :
Bust of Constantinus I left, laureate, wearing trabea, eagle tipped sceptre in right hand.
Legend : CONSTAN-TINUS AVG
Reverse :
Globe set on altar inscribed VOT/IS/XX. Above, three stars.
Legend : BEATA TRAN-QVILITAS
Mint mark PTR (without dot) : first officina of Trier.

Thanks. :-)