After following this thread, I contacted Paul via e-mail and ordered two (2) solid stainless steel guide rods intending to put them in my parts kit to have as back-ups. I already had a couple of new rods in the parts kit.
They arrived yesterday and I had a opportunity to closely examine them this afternoon. I installed one in my 4506-1 and the other in my 4526 make sure they fit and work. Well, they were so lovely and fit so well, I decided to leave them in the pistols and put the two factory rods from the pistols in my parts kit. I don't need to post photos because they look just like the ones pictured in BLUEDOT37's earlier post. Thanks BLUEDOT37 and Paul. Happy!