I found this written on a blue bottle. What does it mean?

> ルツクハ
CC BY-SA 3.0
2016-11-04T04:30:37.807
40644
2016-11-04T18:49:40.267
2016-11-04T05:31:42.603
11792
18540
question
translation
What does ルツクハ mean?
ルツクハ is ハクツル（白鶴） written in reverse order. Japanese was written from right to
left in horizontal writing until mid 20th century. Some labels still use the
system to express their tradition and authenticity.

白鶴 is a famous sake brand. According to the company's website, the name has
been used since 1747.  
<http://www.hakutsuru.co.jp/english/company/history.html>
CC BY-SA 3.0
2016-11-04T04:40:16.420
40645
2016-11-04T04:56:35.740
2016-11-04T04:56:35.740
18522
18522
40644
answer