Japanese (language): How would you interpret this set of Kanji characters?

I'm very late to provide an answer, but I thought I should point out the faint horizontal lines may be the Japanese kanji character "一" for "1". So it may be 1 5 1 5. Or, as they are faint, it may at one time have been 1 1 and now it is 5 5.  Also, the å½³ character may correspond to テ which is the phonetic katakana for "te". That may correspond to the first sound of an organizational group name or something else, like in English we may abbreviate "Alpha" as "A".

Not confident at all, but may be 水 ノ イ 五 五, because Japanese doesn't often use 彳 as a single letter, and if we try to read 彳 as a single letter, the first stroke of this is awkwardly long. 「ノ」, pronounced "no", is "of" in Japanese, but it's sometimes used like a hyphen, separating numbers or symbols, for example in postal addresses, phone numbers, etc. 「イ」 is "A" in the alphabet of Japanese. When they have to put a label on something and they don't want to use numbers they sometime use イロハニホヘト system just like western people use ABCDEFG. If so, 水 ノ イ 五 五 may be something like "Water-A55" I don't know why it is "water", but we can also find a tinted or erased "火(fire)" behind the letter, so may be they were using fire or water or wind to label a class or group of an organization.