One last factor - most casinos don't use borderless cards with a simple pattern like that anymore. They've added some kind of border or another to make certain card sleights more difficult
I'm not trying to disagree, only to add my 2 cents. I made a trip out to Vegas almost once a year, always bought decks from Casinos and all of my decks (almost 50) are borderless. The reason wasn't so much for card sleights, but for amateur marking. Having no border on a card keeps the players from marking key cards on the white border while the cards are in play.
The other reason is that cheap decks are not always consistent in their border printing/cutting. Some if examined can be seen to be thicker or wider depending on where the card is cut, card sharks will memorize border cuts with cards that are in play.
I am sure Don is right in that many Casinos are changing their policies. Who am I to know the mind of a Casino owner? But I agree with Don, a true Casino has their logo on the back - if these are cards from a legit Casino, i'd be surprised if you could discover who it is, it's probably just some whole in the wall.
A low-end casino or one aimed more at locals than tourists might use an inexpensively-made unbordered deck for blackjack or baccarat. Players aren't permitted to handle the cards at those tables, only the dealer. But an enterprising dealer with a second-deal shoe and improvised markings could use that to their advantage.
Most poker these days is played with a bordered deck made of plastic. It's tougher for the players to create impromptu crimps and nicks to serve as markings, and daubs and other wipe-on substances can be spotted from the eye-in-the-sky with light filters.
These days, big-money casinos or resort chains will generally not use borderless decks. There's too much at stake. It's not to say that cheating never occurs, but that they tend to be extremely vigilant about stopping it.
Also, it should be noted that some casinos make decks that were never made for table play, just for sale to customers. Because a lot of people remember the traditional Bee and "Bee-like" patterns, some of those decks will be made without borders - but those decks aren't used on the floor. A good sign that this might be the case would be if the deck is unbordered and uncanceled - the only time you find uncanceled decks in the same patterns/colors as were used on the table is if that color/pattern has been retired and replaced.