Martin, you've seen the money order. You've seen Klein's stamp on it which certifies that it passed through their till. You were shown that the money order had reached the U.S. Treasury Department and it was explained to you that the fact that the Treasury Dept received it was confirmation that it had been cashed.
What for? How would I know if they took the trouble to ask or not? We don't have a bank statement. I don't know why and I don't care. We have what we have. It is more than enough.

It's right there. I underlined it in red for you.
It may be self-evident to you but it's not to me. Why would a bank statement trump the two documents and the sworn testimony of Michaelis? The Exhibit #2 shows that the $29.95 was paid and Michaelis himself confirmed under oath that it was. Explain how a bank statement would trump both of those taken together.
Martin, you've seen the money order. You've seen Klein's stamp on it which certifies that it passed through their till. You were shown that the money order had reached the U.S. Treasury Department and it was explained to you that the fact that the Treasury Dept received it was confirmation that it had been cashed. Actually, I don't know what the Klein's stamp on the money order certifies nor have I been shown that the money order reached the Treasury Department. As I understand it, the money order was found at a location where it shouldn't have ended up if it had gone through the system correctly, which of course also makes the explanation that the Treasury Department "receiving" the money order is "confirmation that it had been cashed" a bit questionable. But, be all that as it may, you missed the point I was making. Despite the fact that the Klein's money order had no or very limited evidentiary value when it comes to the actual shipping of the rifle, they searched for it nevertheless.
At Seaport Trading, where the receipt of the C.O.D. amount, also confirmed the collection of the package, they never did that!
What for? You said it yourself;
In a perfect world, we'd have a bank statement showing the transfer from Railway Express available to us today.
Why would you accept anything less than perfect, when you don't have to?
How would I know if they took the trouble to ask or not? We don't have a bank statement. I don't know why and I don't care. We have what we have. It is more than enough. As I said earlier; you're easy to please! A bankstatement confirming the receipt of a transfer is easily obtainable. The fact that there isn't on in the evidence is extremely telling, if you ask me.
It's right there. I underlined it in red for you.
It may be self-evident to you but it's not to me. Why would a bank statement trump the two documents and the sworn testimony of Michaelis? The Exhibit #2 shows that the $29.95 was paid and Michaelis himself confirmed under oath that it was. Explain how a bank statement would trump both of those taken together. You keep on asking the same question I have already answered. A bankstatement confirming the transfer from RE would have eliminated every doubt that the package was collected and that the C.O.D. amount was paid.
I can't make out if the "paid" you have underlined on the invoice is for the full amount or just for the deposit of $10,00. It says on the invoice that it was prepared on 03/18/63 and that the shipment went out on 03/20/63 with an approximate delivery date of one week. All Seaport Trading had when the invoice was prepared was the deposit. I don't know who wrote "paid" on the document or when that was done, but it seems to me that if it was for the full amount, Michaelis could have said so in his testimony. He didn't and instead only concluded that the full payment was received because two documents were attached to eachother, which makes me believe that the "paid" only related to the $10,00 already received, with $19,95 to be collected upon delivery.