Jim Dax has been contributing photos and information for my website since I first started it in March, 2000, and has been featured in ETCetera as well.  His collection is famous; he collects not only the whole range of ages and styles of typewriters, but also has a great deal of paper and ephemera.  His willingness to contribute to any project, large or small, is also well known.  Here are some pictures he has sent me, for which I offer my gratitude.  All pictures by Jim Dax, with my comments added.

This line was introduced as early as 1893, and is generally considered as the first four-bank keyboard front strike machine to have any success.  The most notable feature of these machines (among many notable features) is the long, low appearance lent not only by the overall profile, but by the long type bars.  You can't see it, but the design includes provision for removal of the whole type basket and keyboard together.  Serial number 2703.

Propely written as "Pittsburg" without the "h."  This is a later development of the Daugherty; in 1898, the Daugherty Typewriter Company changed names to Pittsburg Typewriter Company, with production remaining in the city of Kittaning, Pennsylvania.  Later versions of the Pittsburg are larger and more enclosed, and look much more contemporary as a result. Serial number 19085.
L. C. SMITH & BROS. No. 2

Serial number 21129-2.  This machine is an early No. 2, which means that it has no type-guide at the print point, and that it moves the type basket up when shifted, and not down as on later machines.  This machine's genesis is covered on various pages on this site concerning visible writing machines, and on the Smith brothers.

The paper table decal is of interest, as on many early L. C. Smith machines, because of its wonderful depiction of horses.  My later No. 8 has a different version of decal -- and, note that early machines do not have the manufacturer name on the paper table.  It appears only on the front frame, below the keyboard.

This is an extremely early example, with serial number 421.  Fox Typewriter Company, of Grand Rapids, Michigan, had been successful enough with its pre-1900 upstrike that it kept a position in the field at a time when many other makers tried and failed.  It continued on to produce a front strike standard during the revolution of visible writing, and again, although it did not move up in market position, it kept afloat.  Later on, around 1917, the company began production of a small portable very much along the lines of the established Corona 3, but with a different manner of collapsing the carriage.  On the Fox Portable, the carriage depressed and moved behind the main body of the machine.  Naturally, Corona sued; on my page about Fox standards, I revealed the fact that Fox actually did get awarded a patent for this machine -- proving that at least part of the design was original.  Still, the cash drain was great enough that a non-folding machine appeared to halt the litigation.  The Fox Typewriter Company failed shortly thereafter, and was liquidated.
ROYAL PORTABLE (in silver)

This might be the only one of these I've ever seen.  You can look closely at the picture and see that the decals are intact; this is no repainted machine, folks.  It's original.  

These machines are popular among collectors because they are often found either in a highly desirable two-tone scheme, in various colors, or else with a single-color scheme but one that has an alligator-skin like finish.  This is similar to, but not identical with, much later machines that used what is commonly called "crinkle finish," and which is obtained by baking the machine parts in an oven.  This all-over flat surfaced silver is totally different, and quite stunning to see.

The first model of "visible" typewriter introduced by Remington, to replace the old upstrikes.  Interestingly, the actual type-bar mechanism employed in these machines is not all that different from that of the upstrike.  The No. 10 sold well enough to keep Remington in the business, even though it waited just a little late to convert to visible writing.
ROYAL No. 10

Another No. 10 Royal in Jim's collection that's not shown on any other page on this site.  Note the decorative window treatement on the machine's rear.  This is a detail not often seen.  Also note the elaborate gold pinstriping all over.  Many people think that THIS is what a typewriter is supposed to look like, and the more I view this one, the more I agree.