Joshua:
The last three pics that resemble a nipple device reminds me of a 
grease fitting used to grease metal bearings. A grease gun spout 
(hose) fits over the nipple and the grease is pumped, by hand, into 
the bearing joint. It could be possible the other pics may be the 
metal device the nipple fits in. This device is still used today in 
automobiles and aircraft. OR maybe not!

Regards,
D Parkhill


At 03:17 PM 4/17/2009, you wrote:
>At TRC, we've been working on an early 20th century sawmill and
>associated town recently.  As is frequently the case, we have some
>artifacts that we've been unable to completely identify.  If any of you
>need a break from your excavations and writing, perhaps you could take a
>look at the pictures I've posted at the link below and give me any ideas
>you might have.
>
>http://archaeoseek.ning.com/photo/albums/ravensford-mystery-artifacts
>
>
>
>Thanks,
>
>
>Josh Tuschl
>Lab Manager
>TRC
>1865 Air Lane Dr., Ste. 9
>Nashville, TN 37210
>
>Phone: 615-884-4430
>Fax:   615-884-4431