Brian Posted March 27, 2015 Report Posted March 27, 2015 Rust. Fire would have melted the gold more? Brian 1 Quote
Pete Klein Posted March 27, 2015 Report Posted March 27, 2015 I would agree. What I am finding most interesting is that the rust on the seppadai is similar to that of the rest of the tsuba. If it was stored on the koshirae there would more likely be a border of differentiation. Perhaps it was stored off the koshirae and rusted there? The omote sekigane is also 'clean' while that of the ura has patina. Where's Cumberbatch when you need him??? LOL! Quote
manfrommagnum Posted March 27, 2015 Report Posted March 27, 2015 Maybe corrosion from an attempt to clean it by an ignorant former owner. Quote
Davis Posted March 28, 2015 Report Posted March 28, 2015 I also picked up on the points made by Brian and Pete. My initial thoughts were rust+oil+buffing. Are there any hairline cracks in the iron adjacent to the copper? Mick Quote
Stephen Posted March 28, 2015 Author Report Posted March 28, 2015 Mick dont know yet Cast repo or just new Quote
Pete Klein Posted March 28, 2015 Report Posted March 28, 2015 'Repo' is short for repossess, as used in the movie title, 'Repo Man'. 'Repro' is short for reproduction, as used to describe any movie based upon a comic book... (lol) Quote
Stephen Posted March 28, 2015 Author Report Posted March 28, 2015 ok ok now that we split the hair...any call? Quote
Brian Posted March 28, 2015 Report Posted March 28, 2015 Patina 6 months old. Paint or shoe polish? Brian Quote
Stephen Posted March 28, 2015 Author Report Posted March 28, 2015 says has nthk paper http://www.ebay.com/itm/B8593-Japanese-Samurai-Edo-Antique-NTHK-Certificate-Excellent-Signed-Daito-Tsuba-/381208097688?pt=LH_DefaultDomain_0&hash=item58c1c5f398 Quote
Pete Klein Posted March 28, 2015 Report Posted March 28, 2015 I don't believe this has been re-patinated. It's just that the patina has oxidized which gives it a dull appearance. I've seen these before with that look and it's probably just an anomaly of that finish. Quote
Bazza Posted March 29, 2015 Report Posted March 29, 2015 I get a feeling that the tsuba was clear-lacquered (urushi) long ago... BaZZa. Quote
Davis Posted April 3, 2015 Report Posted April 3, 2015 Some thoughts on the original question. The appearance of a fire damaged tsuba might depend on a number of varying factors. Was the tsuba placed in a fire intentionally under controlled conditions? Was it involved in a fire accidentally? What was the duration/intensity and maximum temperatures reached? Where was the tsuba located within the fire and how was it positioned? How do different metals behave in a fire, what are their expansion rates/melting points? Did the tsuba anneal slowly or was it quenched rapidly? Was there corrosion/rust present before the involvement with fire? Was it allowed to rust after the fire? Was it re-patinated? What were the mediums used? Was re-patination done well/badly? Etc., etc., Re sekigane. Omote side, it has more exposed surface area and seems to stand proud - so easily buffed. Ura - less surface area and appears recessed - difficult to buff - patination or discolouration remains. Sometimes it's seems clear cut, sometimes not. Mick Quote
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