I am trying to produce a type of "Calligraphic L" using LaTeX. Please see the image below. The wobbles are down to me, possibly too much sugar over the Christmas holiday period.

[![enter image description here](https://i.stack.imgur.com/RTqSf.png)](https://i.stack.imgur.com/RTqSf.png)

This type of "L" is used in Abramowitz and Stegun , see the reference , in particular in result 9.6.26 which gives recurrence relations for modified Bessel functions.

So, how might I produce this type of "L" using LaTeX?

**Other Info.**

I have searched using Google, with the search string "latex fancy L" and also used "Detexify" on a mobile phone but did not find anything useful. I also considered other "Math Alphabets" the packages "eufrac" and "rsfso" do not appear to give the type of "L" I am looking for. I have also searched on StackExchange using a mobile phone.

The "L" I want is like that in the package "calrsfs", like the symbol given by the command `\mathcal{L}` but with an extra loop at the top left of the symbol and a little crossing line part way up the main stem of the symbol.

Reference
Handbook Of Mathematical Functions, ninth Dover printing, Ed M. Abramowitz and I.A. Stegun, Dover Publications, Inc., New York.

**Response to duplicate issues.**

**How to look up a symbol or ...**

I recomend the post in question. I think that is where I found out about Detexify from. Apparently the advice in this post should have led to an answer to my question. It's over to the powers that be now ...

**How to do the 'curvy L' ...**

My question is about a particular symbol, one that appears in an equation in Abramowitz and Stegun. This symbol is not a symbol normally used to represent the Lagrangian or a Laplace transform. In fact it is not even an "L".

**Scanned Symbol**

[![enter image description here](https://i.stack.imgur.com/SERxU.jpg)](https://i.stack.imgur.com/SERxU.jpg)