My visit to Longquan allowed me to see with my own eyes how things are done with Zhou Zheng Wu's authorial swords, and the others that he has for sale.
I was fortunate enough to be able to acquire this signed author's jian in jiagang (Chinese for sanmai).
The blade's mountings are top notch as can be seen in the different pictures below.
PLEASE NOTE: What is being put for sale is China's foremost blade smith authorial sword

This is a full sword photo taken in a low temperature light resulting in some change on the warm tones.

Sword Specifications:
Overall length:  40.5 inches
Handle length: 7 1/4 inches including pommel
Guard width: 3.5 inches
Guard maximum height: 2 inches
Scabbard length: 32.5 inches
Blade length: 27 3/4 inches
Blade width at guard: 1 3/8 inches tapering to 7/8 inches
Note: The blade is extremely sharp and flexible. It is a masterpiece of Chinese sword making.

The tassels are in yellow silk chord and the ring is of real jadeite (nephrite). The quality of the bronze fittings is extremely crisp.

A wider view of the mountings in perfectly carved redwood . The main elements in the guard are two dragons and clouds surrounding a Buddhist pearl and the same element is repeated in the scabbard's mouth.

The scabbard's end shows a very finely carved dragon rising from the water and being crowned by the Buddhist pearl while all the other elements along the scabbard are floral motifs with a pearl in the center.

The smith's signature is finely carved unto the blade in the shape of a Chinese seal. Chinese jiagang (sanmai), as Zhou Zheng Wu explained to me, is subtle like the misty scenery of the mountains with clouds. It is not part of the Chinese tradition to polish a sword to show contrast. Everything is subtle...and this picture shows a lot of the activity in the blade very clearly and one can see the edge of the top layer in the lower edge.

This picture above allows to view the scabbard mouth and the way it is mounted. Zhou Zheng Wu's seal style signature is well visible on the blade.

I cleaned the blade and used uchiko powder to bring a bit more of contrast which is more visible with flash and in a totally dark environment. This was not the case, but the sanmai (jiagang) is very visible. While cleaning the blade with Kleenex, it cut through the three layers of Kleenex and cut my finger. It is extremely sharp. The white dots visible are remains of uchiko powder that reflect the flash light.
There is no beveled edge, this is China's most well known smith's signed sword.

Another view where it is entirely distinguishable the sanmai layer and the core steel. Some reflections.

The blade had some barely visible scuffs already when it came to me. I treated it with the utmost care but these are very small scuffs that are almost invisible to the naked eye. Sword comes with a nice box.
PRICE: US$2.000 a very affordable price for an authorial work from China's most famous Bladesmith.
Please do not ask for discounts. I am very aware of the exact value of this sword now, and in the future.