I bought some of those little white mailers as shown in the original thread. Went to the post office. Guy says "it's a package" I said, it fits through the slot, he says "It won't bend", I say, send it as non-machinable... he says what's that? After something like Who's on First, he finally said, OK I'll ship it first class, but if the machine breaks your poker chip, that's on you.

$1.20 for one chip in a small white mailer. Last time I used a bubble pack it was over the usual $3.99 that people charge.

Can anyone please make sense of this for me? No I don't want to put a Forever stamp on and try to sneak one past. I just want to know, for one casino chip, in a piece of protective paper, in a greeting card size envelope, which is standard first class, can I just put on a first class and a non-machinable 17c surcharge additional stamp.

"The $0.17 nonmachinable surcharge applies to all First-Class Mail letters weighing up to the maximum weight of 3.5 ounces, with one or more nonmachin­able characteristics. The aspect ratio (length divided by height) is less than 1.3 or more than 2.5." https://faq.usps.com/s/article/What-is-the-Non-Machinable-Surcharge-for-First-Class-Mail

I figure this covered it. "It is too rigid or contains items such as pens, keys or coins that cause the thickness of the mailpiece to be uneven"

So I should have paid maybe .58 + .17 = .75? But for .90 oz I was charged $1.20 which is a mystery? According to a search on the USPS site - Flat/Large Envelope - 1 oz. $1.16 which is OK if I know in advance. (or would it be $1.33?)

"If approved by the Postal Regulatory Commission, the temporary rate increases would go into effect at 12:00 a.m., Central Time, on Oct. 2, 2022, and remain in place until 12:00 a.m., Central Time, Jan. 22, 2023. International shipments will not be impacted. "

Is there a first class holiday surcharge for a 1oz envelope. If I read the page right: https://www.shipstation.com/blog/2022-usps-holiday-surcharge/ Zone 1 and if surcharge, then I should have paid .75 + .25 = $1.00 Or would it be $1.16 plus the .25 for $1.41?

The receipt by the way is marked "Large Envelope Weight 0-.90 oz"

My eventual goal is to know what the right postage is for 1-2-3-4-5 chips so I don't have to drive to the USPS offices and go through the mystery of what's the postage? @ 5 chips that's 3 oz and starts to be as much as a small envelop can safely hold.

Anyone know the answer? Does the USPS know the answer?