Marilyn Monroe poses at 27 for her trusted make-up artist in never-before-seen pictures

PUBLISHED: 06:08 EST, 27 March 2012 | UPDATED: 07:01 EST, 27 March 2012

Charming unseen photographs of Marilyn Monroe taken by her trusted make-up artist to get her to relax on a film set have emerged for sale.

The archive of Allan Whitey Snyder is remarkable because of the quantity of snaps that were not meant for publication.

So trusted was Synder that Monroe often asked him to photograph her because it helped calm her nerves before filming.

Intimate: Trusted make-up artists Allan 'Whitey' Snyder took these charming shots of a 27-year-old Marilyn Monroe relaxing between takes

The amateur shoots brought her to life and these images show a 27-year-old Monroe totally at ease, wearing a low-cut red T-shirt and a cream skirt.

They are a world away from the international sex symbol she went on to become.

The pictures were taken on the film set of the 1953 movie Niagra, one of her first leading roles. The famous Niagra Falls can be seen in the background.

Snyder was Monroe's professional and personal make-up artist for 16 years and there is a photo of him putting make-up on her face.

He was an important part of her inner-circle and was a pallbearer at her funeral in 1962 as he had promised her he would be.

Playful: Snyder spent hours coaxing and comforting Monroe as she prepared to film her scenes and managed to snap the intimate p! ictures

Playful: Snyder spent hours coaxing and comforting Monroe as she prepared to film her scenes and managed to snap the intimate pictures

Stunning: The unseen photographs show a carefree Marilyn Monroe soaking up the sun on a beach between film takes

Trusted: Allan Snyder's photos are remarkable for the obvious warmth of his relationship with Monroe and show none of the stage fright which she struggled with throughout her career

Stunning: The unseen photographs show a carefree Marilyn Monroe soaking up the sun on a beach between film takes

There are dozens of pictures from the sets of other films including Gentlemen Prefer Blondes, The Prince and the Showgirl, Niagara and Something's Got to Give.

The archive includes letters and other ephemera and is expected to fetch thousands of pounds when it all goes under the hammer at auction.

Darren Julien, of Julien's auctioneers, said: Whitey Snyder died in the 1990s and these items have come from his estate, so they have never been seen before.

Whitey was Marilyn's make-up artist for 16 years and had unlimited access to her.

They met when Monroe had her first screen test at 20th Century Fox in 1946.

At ease: The remarkable pictures, tak! en by ma ke-up artist Allan

At ease: The remarkable pictures, taken by make-up artist Allan

At ease: The remarkable pictures, taken by make-up artist Allan 'Whitey' Snyder, on the set of Niagra in 1953, were never meant for publication and show a more natural side of the screen legend

Sometimes, especially in the early days of her movie career, she would get nervous on set and Whitey would photograph her and she would come to life.

It would take her mind off all her problems and this would happen during down time on film sets.

Some of them even show her in costume and they were never intended to be released to the public.

There are many other items in the archive as well as photographs and collectors and institutions will be keen to own them.

The sale also includes a rare calendar with a picture of a naked Monroe on it.

The picture was taken by Tom Kelly and famously appeared in the first edition of Playboy.

Trusted: The collection of Allan Snyder's pictures of Monroe show the movie star looking at ease away from the film cameras

Unseen: The never-before-seen photos of relaxed film star Marilyn Monroe are expected to sell for thousands of dollars when they go before an auction in Beverly Hills, California

Friendship: Make-up artist Allan Snyder built up a close relationship with Marilyn Monroe, enabling him to take the series of shots of the relaxed film star

Mr Julien said: These calendars used to sell for about 300 or 400 dollars but recently they are going for up to $6,000.

This one is in good condition and Marilyn couldn't do anything about the picture being licensed because she had no control over it.

But in a way it was the picture that helped launch her career.

The archive will be sold in Beverley Hills, California, during a two-day sale starting on March 31.