7-U17. Ron Hartmann Collection.
Kanazawa in Kaga was a centre of fine metal work during the whole of the Tokugawa period. At first the inlayers of Fushimi following the Daimyo Maeda went to Kanazawa, then some of the Gotō masters proceeded from Kyoto for short periods to work for the Daimyo, so that their influence was strongly impressed upon Kaga work..." A somewhat look-a-like tsuba is illustrated at plate XXVIII, Kaga Inlay, №653 with the following description at page 52: "Shakudō, inlaid with five insects in gold: crickets, praying mantis, grasshopper, in the style of Takagawara Ujitsugu.According to M. Sesko, Ujitsugu was a master from Katsuki and Kaneko School in Kaga, son of Ujihira. Ujihira's father Ujiyoshi died in 1802. This brings us to the mid-19th century, instead of mid-18th or earlier. On the other hand, a very much look alike specimen at MFA collection (ACCESSION NUMBER 17.1061) has the with the following description: Edo period. Late 18th–early 19th century. Murakami School. Main material: shakudo; other metals: gold; decorative technique: iroe hirazogan.
MFA # 17.1061
A lookalike triptych by Kunisada can be found in 
Data from 
As Japanese Erotic Fantasies put it: "a couple engaged in love-making, their stare fixed outside the picture plane". This is the only image of series that has a reference in available western literature, and the only one found in museum collections: Rijksmuseum Amsterdam (RP-P-1999-2001-16); reference: Fukuda (ed.) (1990), pls. 11-2.
The scene of this print looks quite similar to that of the Kiyonaga's Sode no maki:
The woman is "a young lady-in-waiting of Shogun's Court or Daimyō's Mansion, enjoying a rare outing from her tedious chores" [Richard Lane]. She is fully dressed in her outer cloak (shikake), white paper hat (agebōshi or tsunokakushi), and toed socks (tabi). A book or maybe, onkotogami (roll of tissues known as 'paper for honourable act' ) is still in the folds of her kimono. She is holding an open fan, either to cover her and her lover's faces from an unsolicited witness or to bring some fresh air to their joined lips. The pair just started their sexual intercourse.
A scene from medieval times. A courtier in eboshi cap having sex with an aristocratic young woman with a long straight hairstyle (suihatsu).
Completely naked couple in the moment of ejaculation. Lavish garments with paulownia leaves on a yellow background counterbalance the white bodies on red bedding. The form of a woman's cheeks is telling, but I don't know about what. Maybe her advanced age?
The pose of the couple and the overall composition are similar to that of the previous sheet. Though the lovers are dressed, and the woman's hairdo is well kept. The male looks older and the woman - younger.
A man takes a young maid from behind. She clenches the sleeve of her kimono in her teeth; it's either the moment of penetration (beginning of intercourse) or of her orgasm (the end of it).
This seems to be a forced intercourse between a lackey with extensive bodily hair and a young maid from the same household.
This design is very much like the other one presented below, which is described at Japanese Erotic Fantasies on page 136 (pl. 43b) as follows: "The viewer peers through a mosquito net to see a child fast asleep, while his mother or wet-nurse moves towards her partner. On our print there is no child; instead of a sleeping baby, there is a roll of onkotogami. Fewer objects make the overall image concise, almost laconic in comparison with the Ehon hana fubuki (1802) design:
A young couple in a moment of true love. He is listening to the beating of her heart.
This is a moment of true love between an old monk and a young samurai. The latter even did not take of his socks (tabi).
From Japanese Erotic Fantasies: "Boats played a crucial role in the workings of Yoshiwara, as they were the primary means of transport to the district. During the hot summer months, trips on pleasure boats were also a favourite pastime. Sex aboard a boat is a recurrent theme in shunga".
The last print that I am currently lacking and hunting for:
I know where it is, but I cannot reach it... yet. 
Ref.: (1) [
