Can anyone tell me which John. Brown side lamp came first? I have a pair with the flat reflector inside and the large red jewel. I've also seen the kind with round inside reflectors and no jewel. I would tend to think, based on the way Henry liked to cut costs, that the jeweled ones came first and to cut expenses the non-jeweled ones were later.
Curious what you have? I'm not aware of Brown lamps that have varying diameter red jewels. The brass and steel jeweled lamps I have all use a jewel that is 7/8". To your question, the jeweled lamps came first. I doubt Henry had anything to do with removing the jewel from this design. Ford was customer to Brown, who supplied the same lamps to multiple other marques besides Ford. I should think that Brown revised this design to remain competitive in an industry where everybody in this product cost bracket employed similar cost controls to remain competitive.
That is an interesting question on the "black and brass" John Brown side lights. How large is the jewel on yours?
I have four sets of the John Brown 110's. Each is different but it sounds as if the side lights were attached to the cars as "sets". They must have been shipped to Ford in pairs.
The jewels are 3/4 inch and two styles on mine. One jewel set is rather smooth and the other has crisp facets on the outside. All have the brass John Brown top although I have seen steel top John Browns but don't have one.
The versions (sets) I have:
1.Flat back reflector set, with 3/4 jewel, spade mount. I burned these last night coming home from church. You are much more visible from the side with these and the tail lit.
2. Round back reflector set with 3/4 jewel, spade mount.
3. Flat back reflector, no jewel, spade mount.
4. Round back reflector, no jewel, integral mount riveted to lamp. These are said to be "1914" style and the last version per Bruce's Book.
All the caps read correctly from the front of the lamp/car. The JB 115 tail light is also visible from the side and I run with it lit at night.
I put mine out with a puff so the wicks are set to light and don't smoke. The wicks are from Walmart, 1/2 inch, 5-pak for $2.47. Kerosene, 1-K, is from Lowes/Academy etc. They have one gallon containers for about $9.00. Putting the wicks in is much easier after you clean the inside of the burner.
The wick adjuster will turn easy if it is clean. I pull the wicks through with a doubled wire similar to a bread wrapper wire. Put a little Kerosene on the wick and pull it back and forth. That is a lot easier than hooking up a bulb in one of the side or tail lights.
Ken in Texas
Thanks for all the information, guys. I didn't mean to give the impression that there were possibly different size jewel's on the Browns-but I wasn't sure. Mine are indeed 3/4" and multi-faceted. They have the smooth reflector insides and spade mounted. I figured they were the first "style" and it makes sense that the supplier, not Ford, made the cost savings change to non-jewelled.