S7-200 Conversation, * and & prefix

Hey guys, doing a small program conversion of an old system. The existing system uses an S7-200 PLC, logic is pretty straight forward however there are some block moves going on that I 90% understand but when I see * or & as a prefix, I don't know what that means.

Example:

                    +------------------+

                    |   BLKMOV_B      |

---------------+                        |

                    |                         |

                    |                         |

     *#Temp_5|                         | VB3370 

                30 |                        |

                     +------------------| 

It appears 30 bytes of data are moving from the *Temp_5 reference, starting at VB3370 - VB3399.

I am trying to understand where the source data is coming from. Temp_5 appears to be the result of a calculating a starting reference point for the block move, but does the * indicate something else?

There is another area that uses &VB3520, what does '&' mean?

Thanks! Flipping through the manual in the mean time.

That was a bad result of ladder in a post...

See attached screen shot of S7-200 manual.